Ministry of Environment, Lands and Parks and Ministry of Forests The formatting and images in this document may vary slightly from the printed version. Suspended Sediment and Fish Habitat Sedimentation in Central Interior Watersheds of British Columbia
Bibliographic record
Abstract
Many watersheds in the central interior of British Columbia are designated for rehabilitation under the Watershed Restoration Program, which includes measures to control surface erosion. A study of suspended sediment and fish habitat sedimentation in several watersheds of the central interior, precursory to restoration activity, is described in this report. Suspended sediment concentrations measured during the spring snowmelt period indicated that sediment delivery to the nine streams surveyed was highly variable. Concentration profiles in some streams were indicative of chronic sources of sediment, but profiles in other streams were indicative of episodic sources of sediment. Severity-of-ill-effect values determined from the suspended sediment data were sufficiently high to indicate lethal and paralethal effects on the resident and migratory fish populations present in streams during the study period. Particularly severe impacts were predicted for eggs and developing larvae. High flow conditions in the spring of 1997 created considerable interference with the calibration and evaluation of sediment traps as
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.212 | 0.047 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".